rest on one's oars

rest on one's oars
lay on one's oars
{US}
(to sit with satisfaction of gained success || to relax one’s efforts after a period of activity; to take a rest after a period of hard work) — почивать на лаврах; || взять тайм-аут, сделать передышку (в работе), передохнуть

Cf.:
[rest on one's laurels]